Vulnerability Details CVE-2025-64458
An issue was discovered in 5.1 before 5.1.14, 4.2 before 4.2.26, and 5.2 before 5.2.8.
NFKC normalization in Python is slow on Windows. As a consequence, `django.http.HttpResponseRedirect`, `django.http.HttpResponsePermanentRedirect`, and the shortcut `django.shortcuts.redirect` were subject to a potential denial-of-service attack via certain inputs with a very large number of Unicode characters.
Earlier, unsupported Django series (such as 5.0.x, 4.1.x, and 3.2.x) were not evaluated and may also be affected.
Django would like to thank Seokchan Yoon for reporting this issue.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 1.3%
CVSS Severity
CVSS v3 Score 7.5
References
Products affected by CVE-2025-64458
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cpe:2.3:a:djangoproject:django:4.2
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cpe:2.3:a:djangoproject:django:4.2.0
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cpe:2.3:a:djangoproject:django:4.2.1
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cpe:2.3:a:djangoproject:django:4.2.10
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cpe:2.3:a:djangoproject:django:4.2.11
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cpe:2.3:a:djangoproject:django:4.2.12
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cpe:2.3:a:djangoproject:django:4.2.13
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cpe:2.3:a:djangoproject:django:4.2.14
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cpe:2.3:a:djangoproject:django:4.2.15
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cpe:2.3:a:djangoproject:django:4.2.16
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cpe:2.3:a:djangoproject:django:4.2.17
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cpe:2.3:a:djangoproject:django:4.2.18
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cpe:2.3:a:djangoproject:django:4.2.19
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cpe:2.3:a:djangoproject:django:4.2.2
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cpe:2.3:a:djangoproject:django:4.2.20
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cpe:2.3:a:djangoproject:django:4.2.21
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cpe:2.3:a:djangoproject:django:4.2.22
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cpe:2.3:a:djangoproject:django:4.2.23
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cpe:2.3:a:djangoproject:django:4.2.24
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cpe:2.3:a:djangoproject:django:4.2.25
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cpe:2.3:a:djangoproject:django:4.2.3
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cpe:2.3:a:djangoproject:django:4.2.4
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cpe:2.3:a:djangoproject:django:4.2.5
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cpe:2.3:a:djangoproject:django:4.2.6
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cpe:2.3:a:djangoproject:django:4.2.7
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cpe:2.3:a:djangoproject:django:4.2.8
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cpe:2.3:a:djangoproject:django:4.2.9
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cpe:2.3:a:djangoproject:django:5.1
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cpe:2.3:a:djangoproject:django:5.1.1
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cpe:2.3:a:djangoproject:django:5.1.10
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cpe:2.3:a:djangoproject:django:5.1.11
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cpe:2.3:a:djangoproject:django:5.1.12
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cpe:2.3:a:djangoproject:django:5.1.13
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cpe:2.3:a:djangoproject:django:5.1.2
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cpe:2.3:a:djangoproject:django:5.1.3
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cpe:2.3:a:djangoproject:django:5.1.4
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cpe:2.3:a:djangoproject:django:5.1.5
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cpe:2.3:a:djangoproject:django:5.1.6
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cpe:2.3:a:djangoproject:django:5.1.7
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cpe:2.3:a:djangoproject:django:5.1.8
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cpe:2.3:a:djangoproject:django:5.1.9
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cpe:2.3:a:djangoproject:django:5.2
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cpe:2.3:a:djangoproject:django:5.2.1
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cpe:2.3:a:djangoproject:django:5.2.2
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cpe:2.3:a:djangoproject:django:5.2.3
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cpe:2.3:a:djangoproject:django:5.2.4
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cpe:2.3:a:djangoproject:django:5.2.5
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cpe:2.3:a:djangoproject:django:5.2.6
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cpe:2.3:a:djangoproject:django:5.2.7